Open Source Amazon Lex Alternatives

The best open source alternative to Amazon Lex is Open Assistant.io. If that doesn't suit you, our users have ranked more than 25 alternatives to Amazon Lex and seven of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Amazon Lex are Khoj, Botpress, Hubot and rasa NLU.

Amazon Lex alternatives are mainly AI Chatbots but may also be AI Writing Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Amazon Lex.

Amazon Lex

Paid • Proprietary

Amazon Lex is a fully managed artificial intelligence (AI) service with advanced natural language models to design, build,...

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Open Assistant.io
Is this is a good alternative?
Yes
No
Free • Open Source
AI Chatbot
AI Writing Tool
Online
Self-Hosted
94 Open Assistant.io alternatives
OpenAssistant is a chat-based assistant that understands tasks, can interact with third-party systems, and retrieve information dynamically to do so.
- - Open Assistant.io is the most popular Web-based & Self-Hosted alternative to Amazon Lex.
- - Open Assistant.io is the most popular Open Source & free alternative to Amazon Lex.
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Open Assistant.io Features
1. Ad-freeOpen Assistant.io doesn't contain any form of external advertising.
2. Dark ModeOpen Assistant.io supports dark mode for comfortable usage in low light conditions.
AI-Powered
Discontinued
From their website: "OpenAssistant has finished! OpenAssistant collected data from over 13'000 humans and released it to the public. Data, models, and code are publicly available." https://open-assistant.io/pt-BR/bye
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Khoj
Is this is a good alternative?
Yes
No
Free • Open Source
AI Chatbot
AI Writing Tool
Linux
Mac
Windows
67 Khoj alternatives
Khoj is an open-source, AI personal assistant that links up all your knowledge bases. It is a thinking tool that is transparent, fun and easy to engage with. Khoj can help you build faster and better by using an AI assistant to search and reason across your disparate data...
- - Khoj is the most popular Windows, Mac & Linux alternative to Amazon Lex.
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Khoj Features
1. Privacy focusedKhoj is considered a privacy friendly alternative.
AI-Powered
Personal-assistant
Botpress
Is this is a good alternative?
Yes
No
Free Personal • Open Source
Self-Hosted
40 Botpress alternatives
Botpress is an open-source conversational AI platform with a comprehensive set of functionalities for FAQ & task automation. It's lightweight and have zero external dependencies allowing you to deploy it anywhere.
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Botpress Features
1. LightweightBotpress consumes less device resources compared to similar apps.
2. Spell CheckingBotpress can detect and correct all types of grammar and spelling mistakes.
Natural Language Processing
Slack integration
Facebook Messenger integration
Microsoft Teams Integration
Chatbot Builder
Telegram integration
No dependencies
Hubot
Is this is a good alternative?
Yes
No
Free • Open Source
Online
44 Hubot alternatives
Hubot is a framework to build chat bots, modeled after GitHub's Campfire bot of the same name, hubot.
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Hubot Features
1. Extensible by Plugins/ExtensionsHubot can be extended with add-ons, plugins and extensions.
Chat Bot
Chatbot Builder
rasa NLU
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
Python
35 rasa NLU alternatives
rasa NLU is a tool for intent classification and entity extraction. You can think of rasa NLU as a set of high level APIs for building your own language parser using existing NLP and ML libraries.
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rasa NLU Features
Natural Language Processing
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ChaosBot
Is this is a good alternative?
Yes
No
Free • Open Source
Self-Hosted
10 ChaosBot alternatives
ChaosBot is a social coding experiment to see what happens when the absolute direction of a software project is turned over to the open source community.
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ChaosBot Features
Chat Bot
Discontinued
It's discontinued. Just read the github repo or try to see the website.
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TeeDee
Is this is a good alternative?
Yes
No
Paid • Open Source
AI Chatbot
Online
Software as a Service (SaaS)
31 TeeDee alternatives
Features - Get the best price, Create in three clicks, All round assistance for all, Upgrade your business, Real time customization. TeeDee Services - Feedback, Lead Generation, FAQ, Live Chat System, Support, Survey, Appointment, Custom Chatbots.
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TeeDee Features
Book Appointments Online
Customizable
Appointment Scheduling
Feedback
FAQ Automation
Chatbot Builder
Live Support Chat
Chat Bot